;(() => {
  class Person {
    constructor(readonly name: string) {}
  }

  const person = new Person('刘柏麟')
  console.log(person.name)
  // 抽象类
  abstract class Girl {
    abstract job(): string
  }

  class Woman extends Girl {
    job(): string {
      return 'job1'
    }
  }
})()
